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Форум » starterkit.ru » Embedded Linux
Возврат к первоначальным настройкам
vgovseychuk
Добавлено 20.01.2016 14:10 Редактировалось 20.01.2016 14:12
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Сообщение: 1
vgovseychuk
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Пункты: 107
Регистрация: 20.01.2016
День добрый

Интересует вопрос, как сделать возможным возврат системы к начальным настройкам (overlay)?

Краткая инфа:

Система OpenWRT.
ПЗУ - NAND-флешка.
Файловая система UBIFS.
Сейчас на NAND-флешке 5 разделов: bootloader, environment, devicetree, kernel и rootfs.
Систему собирал сам, железо кастомное, поэтому некоторых модулей может не быть.

Доп. инфа:
Код

root@OpenWrt:~# mount
rootfs on / type rootfs (rw)
ubi0_0 on / type ubifs (rw,noatime)
proc on /proc type proc (rw,noatime)
sysfs on /sys type sysfs (rw,noatime)
tmpfs on /tmp type tmpfs (rw,nosuid,nodev,noatime)
tmpfs on /dev type tmpfs (rw,relatime,size=512k,mode=755)
devpts on /dev/pts type devpts (rw,relatime,mode=600)
debugfs on /sys/kernel/debug type debugfs (rw,noatime)

root@OpenWrt:~# df -h
Filesystem Size Used Available Use% Mounted on
rootfs 104.6M 14.7M 89.9M 14% /
ubi0_0 104.6M 14.7M 89.9M 14% /
tmpfs 61.2M 528.0K 60.7M 1% /tmp
tmpfs 512.0K 0 512.0K 0% /dev


Ну и простыня dmesg (не знаю, как свернуть; научите, пожалуйста):
Код

root@OpenWrt:~# dmesg
[ 0.000000] Booting Linux on physical CPU 0x0
[ 0.000000] Linux version 3.18.21 (denominat0r@denominat0r-virtual-machine) (gcc version 4.8.3 (OpenWrt/Linaro GCC 4.8-2014.04 r47239) ) #3 Wed Oct 21 14:18:47 MSK 2015
[ 0.000000] CPU: ARM926EJ-S [41069265] revision 5 (ARMv5TEJ), cr=0005317f
[ 0.000000] CPU: VIVT data cache, VIVT instruction cache
[ 0.000000] Machine model: I2SE Duckbill
[ 0.000000] Memory policy: Data cache writeback
[ 0.000000] On node 0 totalpages: 32768
[ 0.000000] free_area_init_node: node 0, pgdat c0434448, node_mem_map c7efc000
[ 0.000000] Normal zone: 256 pages used for memmap
[ 0.000000] Normal zone: 0 pages reserved
[ 0.000000] Normal zone: 32768 pages, LIFO batch:7
[ 0.000000] pcpu-alloc: s0 r0 d32768 u32768 alloc=1*32768
[ 0.000000] pcpu-alloc: [0] 0
[ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 32512
[ 0.000000] Kernel command line: console=ttyAPP4,115200 rootfstype=ubifs ubi.mtd=4 root=ubi0_0 rw mtdparts=gpmi-nand:100m(bootloader)ro,256k(environment),128k(fdt),5m(kernel),-(rootfs)
[ 0.000000] PID hash table entries: 512 (order: -1, 2048 bytes)
[ 0.000000] Dentry cache hash table entries: 16384 (order: 4, 65536 bytes)
[ 0.000000] Inode-cache hash table entries: 8192 (order: 3, 32768 bytes)
[ 0.000000] Memory: 125244K/131072K available (3234K kernel code, 104K rwdata, 884K rodata, 128K init, 188K bss, 5828K reserved)
[ 0.000000] Virtual kernel memory layout:
vector : 0xffff0000 - 0xffff1000 ( 4 kB)
fixmap : 0xffc00000 - 0xffe00000 (2048 kB)
vmalloc : 0xc8800000 - 0xff000000 ( 872 MB)
lowmem : 0xc0000000 - 0xc8000000 ( 128 MB)
modules : 0xbf000000 - 0xc0000000 ( 16 MB)
.text : 0xc0008000 - 0xc040dce4 (4120 kB)
.init : 0xc040e000 - 0xc042e000 ( 128 kB)
.data : 0xc042e000 - 0xc0448340 ( 105 kB)
.bss : 0xc0448340 - 0xc047741c ( 189 kB)
[ 0.000000] NR_IRQS:16 nr_irqs:16 16
[ 0.000046] sched_clock: 32 bits at 24MHz, resolution 41ns, wraps every 178956969942ns
[ 0.000496] Calibrating delay loop... 226.09 BogoMIPS (lpj=1130496)
[ 0.080344] pid_max: default: 32768 minimum: 301
[ 0.080688] Mount-cache hash table entries: 1024 (order: 0, 4096 bytes)
[ 0.080739] Mountpoint-cache hash table entries: 1024 (order: 0, 4096 bytes)
[ 0.081977] CPU: Testing write buffer coherency: ok
[ 0.082824] Setting up static identity map for 0x40010eb8 - 0x40010f10
[ 0.087793] pinctrl core: initialized pinctrl subsystem
[ 0.088973] regulator-dummy: no parameters
[ 0.107484] NET: Registered protocol family 16
[ 0.108742] DMA: preallocated 256 KiB pool for atomic coherent allocations
[ 0.112158] cpuidle: using governor ladder
[ 0.112260] cpuidle: using governor menu
[ 0.144355] Serial: AMBA PL011 UART driver
[ 0.145078] 80074000.serial: ttyAMA0 at MMIO 0x80074000 (irq = 216, base_baud = 0) is a PL011 rev2
[ 0.165697] mxs-dma 80004000.dma-apbh: initialized
[ 0.172488] mxs-dma 80024000.dma-apbx: initialized
[ 0.173792] 3P3V: 3300 mV
[ 0.174091] reg-fixed-voltage regulators:3p3v: 3P3V supplying 3300000uV
[ 0.174794] usb0_vbus: 5000 mV
[ 0.175032] reg-fixed-voltage regulators:usb0_vbus: usb0_vbus supplying 5000000uV
[ 0.175725] usb1_vbus: 5000 mV
[ 0.175956] reg-fixed-voltage regulators:usb1_vbus: usb1_vbus supplying 5000000uV
[ 0.178117] usbcore: registered new interface driver usbfs
[ 0.178463] usbcore: registered new interface driver hub
[ 0.178726] usbcore: registered new device driver usb
[ 0.179227] pps_core: LinuxPPS API ver. 1 registered
[ 0.179263] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <giometti@linux.it>
[ 0.179429] PTP clock support registered
[ 0.183035] Switched to clocksource mxs_timer
[ 0.187735] NET: Registered protocol family 2
[ 0.189744] TCP established hash table entries: 1024 (order: 0, 4096 bytes)
[ 0.189831] TCP bind hash table entries: 1024 (order: 0, 4096 bytes)
[ 0.189887] TCP: Hash tables configured (established 1024 bind 1024)
[ 0.190069] TCP: reno registered
[ 0.190121] UDP hash table entries: 256 (order: 0, 4096 bytes)
[ 0.190178] UDP-Lite hash table entries: 256 (order: 0, 4096 bytes)
[ 0.190734] NET: Registered protocol family 1
[ 0.194189] futex hash table entries: 256 (order: -1, 3072 bytes)
[ 0.207369] squashfs: version 4.0 (2009/01/31) Phillip Lougher
[ 0.207437] jffs2: version 2.2 (NAND) (SUMMARY) (LZMA) (RTIME) (CMODE_PRIORITY) © 2001-2006 Red Hat, Inc.
[ 0.208244] msgmni has been set to 244
[ 0.213447] io scheduler noop registered
[ 0.213515] io scheduler deadline registered (default)
[ 0.214415] Serial: 8250/16550 driver, 2 ports, IRQ sharing disabled
[ 0.216391] Serial: AMBA driver
[ 0.216725] of_dma_request_slave_channel: dma-names property of node '/apb@80000000/apbx@80040000/serial@80074000' missing or empty
[ 0.216784] uart-pl011 80074000.serial: no DMA platform data
[ 0.217608] 8006c000.serial: ttyAPP1 at MMIO 0x8006c000 (irq = 214, base_baud = 1500000) is a 8006c000.serial
[ 0.218388] mxs-auart 8006c000.serial: Found APPUART 3.1.0
[ 0.218974] 80072000.serial: ttyAPP4 at MMIO 0x80072000 (irq = 215, base_baud = 1500000) is a 80072000.serial
[ 0.649003] console [ttyAPP4] enabled
[ 0.653503] mxs-auart 80072000.serial: Found APPUART 3.1.0
[ 0.694715] nand: device found, Manufacturer ID: 0xc2, Chip ID: 0xda
[ 0.701113] nand: Macronix MX30LF2G18AC
[ 0.705073] nand: 256MiB, SLC, page size: 2048, OOB size: 64
[ 0.710866] Scanning device for bad blocks
[ 0.721202] Bad eraseblock 1 at 0x000000020000
[ 0.727059] Bad eraseblock 2 at 0x000000040000
[ 0.733156] Bad eraseblock 3 at 0x000000060000
[ 1.163750] 5 cmdlinepart partitions found on MTD device gpmi-nand
[ 1.169974] Creating 5 MTD partitions on "gpmi-nand":
[ 1.175160] 0x000000000000-0x000006400000 : "bootloader"
[ 1.183912] 0x000006400000-0x000006440000 : "environment"
[ 1.191816] 0x000006440000-0x000006460000 : "fdt"
[ 1.199165] 0x000006460000-0x000006960000 : "kernel"
[ 1.206927] 0x000006960000-0x000010000000 : "rootfs"
[ 1.215531] mtd: device 4 (rootfs) set to be root filesystem
[ 1.222214] mtdsplit: no squashfs found in "rootfs"
[ 1.227266] mtdsplit: no squashfs found in "gpmi-nand"
[ 1.232464] gpmi-nand 8000c000.gpmi-nand: driver registered.
[ 1.240725] fec 800f0000.ethernet: Looking up phy-supply from device tree
[ 1.240798] fec 800f0000.ethernet: Looking up phy-supply property in node /ahb@80080000/ethernet@800f0000 failed
[ 1.240836] 800f0000.ethernet supply phy not found, using dummy regulator
[ 1.361201] libphy: fec_enet_mii_bus: probed
[ 1.368021] fec 800f4000.ethernet: Looking up phy-supply from device tree
[ 1.368092] fec 800f4000.ethernet: Looking up phy-supply property in node /ahb@80080000/ethernet@800f4000 failed
[ 1.368129] 800f4000.ethernet supply phy not found, using dummy regulator
[ 1.378150] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[ 1.384875] ehci-platform: EHCI generic platform driver
[ 1.391000] i2c /dev entries driver
[ 1.397033] TCP: cubic registered
[ 1.400424] NET: Registered protocol family 17
[ 1.405236] bridge: automatic filtering via arp/ip/ip6tables has been deprecated. Update your scripts to load br_netfilter if you need this.
[ 1.418016] 8021q: 802.1Q VLAN Support v1.8
[ 1.427320] UBI: attaching mtd4 to ubi0
[ 1.701441] random: nonblocking pool is initialized
[ 3.037728] UBI: scanning is finished
[ 3.064217] UBI: attached mtd4 (name "rootfs", size 150 MiB) to ubi0
[ 3.070618] UBI: PEB size: 131072 bytes (128 KiB), LEB size: 126976 bytes
[ 3.077542] UBI: min./max. I/O unit sizes: 2048/2048, sub-page size 2048
[ 3.084349] UBI: VID header offset: 2048 (aligned 2048), data offset: 4096
[ 3.091255] UBI: good PEBs: 1205, bad PEBs: 0, corrupted PEBs: 0
[ 3.097352] UBI: user volume: 1, internal volumes: 1, max. volumes count: 128
[ 3.104586] UBI: max/mean erase counter: 2/1, WL threshold: 4096, image sequence number: 0
[ 3.112882] UBI: available PEBs: 0, total reserved PEBs: 1205, PEBs reserved for bad PEB handling: 40
[ 3.122272] drivers/rtc/hctosys.c: unable to open rtc device (rtc0)
[ 3.135618] UBI: background thread "ubi_bgt0d" started, PID 277
[ 3.145638] UBIFS: background thread "ubifs_bgt0_0" started, PID 280
[ 3.330016] UBIFS: mounted UBI device 0, volume 0, name "rootfs"
[ 3.336184] UBIFS: LEB size: 126976 bytes (124 KiB), min./max. I/O unit sizes: 2048 bytes/2048 bytes
[ 3.345429] UBIFS: FS size: 119357440 bytes (113 MiB, 940 LEBs), journal size 9023488 bytes (8 MiB, 72 LEBs)
[ 3.355346] UBIFS: reserved for root: 0 bytes (0 KiB)
[ 3.360442] UBIFS: media format: w4/r0 (latest is w4/r0), UUID C1093420-21D9-495D-A90E-32D8584A8357, small LPT model
[ 3.375535] VFS: Mounted root (ubifs filesystem) on device 0:10.
[ 3.382230] Freeing unused kernel memory: 128K (c040e000 - c042e000)
[ 3.775149] init: Console is alive
[ 4.615180] SCSI subsystem initialized
[ 4.647047] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
[ 4.655642] ohci-platform: OHCI generic platform driver
[ 4.686062] platform 80080000.usb: Driver imx_usb requests probe deferral
[ 4.693463] platform 80090000.usb: Driver imx_usb requests probe deferral
[ 4.706951] imx_usb 80080000.usb: Looking up vbus-supply from device tree
[ 4.707871] ci_hdrc ci_hdrc.0: ChipIdea HDRC found, lpm: 0; cap: c8a60100 op: c8a60140
[ 4.711278] ci_hdrc ci_hdrc.0: It is OTG capable controller
[ 4.718955] ci_hdrc ci_hdrc.0: EHCI Host Controller
[ 4.724043] ci_hdrc ci_hdrc.0: new USB bus registered, assigned bus number 1
[ 4.743176] ci_hdrc ci_hdrc.0: USB 2.0 started, EHCI 1.00
[ 4.752301] hub 1-0:1.0: USB hub found
[ 4.756888] hub 1-0:1.0: 1 port detected
[ 4.764998] imx_usb 80090000.usb: Looking up vbus-supply from device tree
[ 4.765943] ci_hdrc ci_hdrc.1: ChipIdea HDRC found, lpm: 0; cap: c8a80100 op: c8a80140
[ 4.769103] ci_hdrc ci_hdrc.1: It is OTG capable controller
[ 4.769196] ci_hdrc ci_hdrc.1: EHCI Host Controller
[ 4.774354] ci_hdrc ci_hdrc.1: new USB bus registered, assigned bus number 2
[ 4.786728] usbcore: registered new interface driver usb-storage
[ 4.793296] ci_hdrc ci_hdrc.1: USB 2.0 started, EHCI 1.00
[ 4.802050] hub 2-0:1.0: USB hub found
[ 4.806119] hub 2-0:1.0: 1 port detected
[ 5.796008] init: - preinit -
[ 8.133129] usb 2-1: new high-speed USB device number 2 using ci_hdrc
[ 9.446359] mount_root: mounting /dev/root
[ 9.485012] procd: - early -
[ 10.204282] procd: - ubus -
[ 11.221281] procd: - init -
[ 15.709832] NET: Registered protocol family 10
[ 15.740209] Initializing XFRM netlink socket
[ 15.760289] NET: Registered protocol family 15
[ 15.776470] tun: Universal TUN/TAP device driver, 1.6
[ 15.781570] tun: © 1999-2004 Max Krasnyansky <maxk@qualcomm.com>
[ 15.803585] gre: GRE over IPv4 demultiplexor driver
[ 15.814010] ip_gre: GRE over IPv4 tunneling driver
[ 15.914106] Linux video capture interface: v2.00
[ 16.110804] cdc_acm 2-1:1.0: ttyACM0: USB ACM device
[ 16.127672] cdc_acm 2-1:1.2: ttyACM1: USB ACM device
[ 16.138344] cdc_acm 2-1:1.4: ttyACM2: USB ACM device
[ 16.157738] cdc_acm 2-1:1.6: ttyACM3: USB ACM device
[ 16.168713] cdc_acm 2-1:1.8: ttyACM4: USB ACM device
[ 16.186422] cdc_acm 2-1:1.10: ttyACM5: USB ACM device
[ 16.197099] cdc_acm 2-1:1.12: ttyACM6: USB ACM device
[ 16.214259] usbcore: registered new interface driver cdc_acm
[ 16.219961] cdc_acm: USB Abstract Control Model driver for USB modems and ISDN adapters
[ 16.232191] usbcore: registered new interface driver cdc_wdm
[ 16.245776] Loading modules backported from Linux version master-2015-03-09-0-g141f155
[ 16.253854] Backport generated by backports.git backports-20150129-0-gdd4a670
[ 16.342563] nf_conntrack version 0.5.0 (1958 buckets, 7832 max)
[ 16.579268] usbcore: registered new interface driver usbserial
[ 16.585573] usbcore: registered new interface driver usbserial_generic
[ 16.592416] usbserial: USB Serial support registered for generic
[ 16.642842] usbcore: registered new interface driver uvcvideo
[ 16.648748] USB Video Class driver (1.1.1)
[ 16.756563] xt_time: kernel timezone is -0000
[ 16.765796] usbcore: registered new interface driver cdc_ether
[ 16.795820] usbcore: registered new interface driver cdc_ncm
[ 16.969096] cfg80211: Calling CRDA to update world regulatory domain
[ 16.983645] cfg80211: World regulatory domain updated:
[ 16.988835] cfg80211: DFS Master region: unset
[ 16.993317] cfg80211: (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp), (dfs_cac_time)
[ 17.003189] cfg80211: (2402000 KHz - 2472000 KHz @ 40000 KHz), (N/A, 2000 mBm), (N/A)
[ 17.011231] cfg80211: (2457000 KHz - 2482000 KHz @ 40000 KHz), (N/A, 2000 mBm), (N/A)
[ 17.019362] cfg80211: (2474000 KHz - 2494000 KHz @ 20000 KHz), (N/A, 2000 mBm), (N/A)
[ 17.027480] cfg80211: (5170000 KHz - 5250000 KHz @ 80000 KHz), (N/A, 2000 mBm), (N/A)
[ 17.035600] cfg80211: (5250000 KHz - 5330000 KHz @ 80000 KHz, 160000 KHz AUTO), (N/A, 2000 mBm), (0 s)
[ 17.045200] cfg80211: (5490000 KHz - 5730000 KHz @ 160000 KHz), (N/A, 2000 mBm), (0 s)
[ 17.053401] cfg80211: (5735000 KHz - 5835000 KHz @ 80000 KHz), (N/A, 2000 mBm), (N/A)
[ 17.061444] cfg80211: (57240000 KHz - 63720000 KHz @ 2160000 KHz), (N/A, 0 mBm), (N/A)
[ 17.109012] ip_tables: © 2000-2006 Netfilter Core Team
[ 17.497914] PPP generic driver version 2.4.2
[ 17.515848] NET: Registered protocol family 24
[ 17.531823] usbcore: registered new interface driver qmi_wwan
[ 17.547926] usbcore: registered new interface driver rndis_host
[ 17.623934] usbcore: registered new interface driver sierra
[ 17.629875] usbserial: USB Serial support registered for Sierra USB modem
[ 17.648773] usbcore: registered new interface driver sierra_net
[ 17.672781] usbcore: registered new interface driver cdc_mbim
[ 17.712612] usbcore: registered new interface driver option
[ 17.718731] usbserial: USB Serial support registered for GSM modem (1-port)
[ 17.836637] usbcore: registered new interface driver rt2800usb
[ 31.671818] usb 2-1: USB disconnect, device number 2
[ 78.463577] fec 800f0000.ethernet eth0: Freescale FEC PHY driver [SMSC LAN8710/LAN8720] (mii_bus:phy_addr=800f0000.etherne:00, irq=-1)
[ 78.476950] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
[ 80.463708] fec 800f0000.ethernet eth0: Link is Up - 100Mbps/Full - flow control rx/tx
[ 80.471767] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
[ 141.283118] usb 2-1: new high-speed USB device number 3 using ci_hdrc
[ 141.475515] cdc_acm 2-1:1.0: ttyACM0: USB ACM device
[ 141.501149] cdc_acm 2-1:1.2: ttyACM1: USB ACM device
[ 141.514332] cdc_acm 2-1:1.4: ttyACM2: USB ACM device
[ 141.526840] cdc_acm 2-1:1.6: ttyACM3: USB ACM device
[ 141.552503] cdc_acm 2-1:1.8: ttyACM4: USB ACM device
[ 141.568859] cdc_acm 2-1:1.10: ttyACM5: USB ACM device
[ 141.588001] cdc_acm 2-1:1.12: ttyACM6: USB ACM device
[ 165.073014] 3g-3G: renamed from ppp0
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